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authorSverker Eriksson <[email protected]>2012-10-16 20:14:48 +0200
committerSverker Eriksson <[email protected]>2012-10-16 20:14:48 +0200
commitd969763b18582c8c879ab3dd9e3ce37502430972 (patch)
tree096b3602b360384a4f57979ca14ad639fdb666a6 /lib
parente5c1d346e29e5b1227ed30ee4d725a09eca0e532 (diff)
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crypto: Enable runtime upgrade of crypto
Diffstat (limited to 'lib')
-rw-r--r--lib/crypto/c_src/crypto.c62
1 files changed, 30 insertions, 32 deletions
diff --git a/lib/crypto/c_src/crypto.c b/lib/crypto/c_src/crypto.c
index 8bd0690a17..c98dacc3eb 100644
--- a/lib/crypto/c_src/crypto.c
+++ b/lib/crypto/c_src/crypto.c
@@ -405,9 +405,39 @@ static int init(ErlNifEnv* env, ERL_NIF_TERM load_info)
return 0;
}
if (library_refc > 0) {
+ /* Repeated loading of this library (module upgrade).
+ * Atoms and callbacks are already set, we are done.
+ */
return 1;
}
+ atom_true = enif_make_atom(env,"true");
+ atom_false = enif_make_atom(env,"false");
+ atom_sha = enif_make_atom(env,"sha");
+ atom_sha224 = enif_make_atom(env,"sha224");
+ atom_sha256 = enif_make_atom(env,"sha256");
+ atom_sha384 = enif_make_atom(env,"sha384");
+ atom_sha512 = enif_make_atom(env,"sha512");
+ atom_md5 = enif_make_atom(env,"md5");
+ atom_ripemd160 = enif_make_atom(env,"ripemd160");
+ atom_error = enif_make_atom(env,"error");
+ atom_rsa_pkcs1_padding = enif_make_atom(env,"rsa_pkcs1_padding");
+ atom_rsa_pkcs1_oaep_padding = enif_make_atom(env,"rsa_pkcs1_oaep_padding");
+ atom_rsa_no_padding = enif_make_atom(env,"rsa_no_padding");
+ atom_undefined = enif_make_atom(env,"undefined");
+ atom_ok = enif_make_atom(env,"ok");
+ atom_not_prime = enif_make_atom(env,"not_prime");
+ atom_not_strong_prime = enif_make_atom(env,"not_strong_prime");
+ atom_unable_to_check_generator = enif_make_atom(env,"unable_to_check_generator");
+ atom_not_suitable_generator = enif_make_atom(env,"not_suitable_generator");
+ atom_check_failed = enif_make_atom(env,"check_failed");
+ atom_unknown = enif_make_atom(env,"unknown");
+ atom_none = enif_make_atom(env,"none");
+ atom_notsup = enif_make_atom(env,"notsup");
+ atom_digest = enif_make_atom(env,"digest");
+
+ init_digest_types(env);
+
if (!change_basename(lib_buf, sizeof(lib_buf), callback_lib)) {
return 0;
}
@@ -455,33 +485,6 @@ static int load(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info)
return -1;
}
- atom_true = enif_make_atom(env,"true");
- atom_false = enif_make_atom(env,"false");
- atom_sha = enif_make_atom(env,"sha");
- atom_sha224 = enif_make_atom(env,"sha224");
- atom_sha256 = enif_make_atom(env,"sha256");
- atom_sha384 = enif_make_atom(env,"sha384");
- atom_sha512 = enif_make_atom(env,"sha512");
- atom_md5 = enif_make_atom(env,"md5");
- atom_ripemd160 = enif_make_atom(env,"ripemd160");
- atom_error = enif_make_atom(env,"error");
- atom_rsa_pkcs1_padding = enif_make_atom(env,"rsa_pkcs1_padding");
- atom_rsa_pkcs1_oaep_padding = enif_make_atom(env,"rsa_pkcs1_oaep_padding");
- atom_rsa_no_padding = enif_make_atom(env,"rsa_no_padding");
- atom_undefined = enif_make_atom(env,"undefined");
- atom_ok = enif_make_atom(env,"ok");
- atom_not_prime = enif_make_atom(env,"not_prime");
- atom_not_strong_prime = enif_make_atom(env,"not_strong_prime");
- atom_unable_to_check_generator = enif_make_atom(env,"unable_to_check_generator");
- atom_not_suitable_generator = enif_make_atom(env,"not_suitable_generator");
- atom_check_failed = enif_make_atom(env,"check_failed");
- atom_unknown = enif_make_atom(env,"unknown");
- atom_none = enif_make_atom(env,"none");
- atom_notsup = enif_make_atom(env,"notsup");
- atom_digest = enif_make_atom(env,"digest");
-
- init_digest_types(env);
-
*priv_data = NULL;
library_refc++;
return 0;
@@ -496,11 +499,6 @@ static int upgrade(ErlNifEnv* env, void** priv_data, void** old_priv_data,
if (*priv_data != NULL) {
return -1; /* Don't know how to do that */
}
- if (library_refc == 0) {
- /* No support for real library upgrade. The tricky thing is to know
- when to (re)set the callbacks for allocation and locking. */
- return -2;
- }
if (!init(env, load_info)) {
return -1;
}